157 lines
5.2 KiB
Python
Executable File
157 lines
5.2 KiB
Python
Executable File
#!/usr/bin/env python2
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# -*- coding: utf-8 -*-
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# GR-GSM based transceiver
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#
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# (C) 2016-2019 by Vadim Yanitskiy <axilirator@gmail.com>
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# (C) 2017-2018 by Piotr Krysik <ptrkrysik@gmail.com>
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#
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# All Rights Reserved
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#
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# This program is free software; you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation; either version 2 of the License, or
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# (at your option) any later version.
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#
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License along
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# with this program; if not, write to the Free Software Foundation, Inc.,
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# 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
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import signal
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import sys
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from argparse import ArgumentParser
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from argparse import ArgumentTypeError
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from gnuradio import eng_notation
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from grgsm.trx import RadioInterface
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from grgsm.trx import Transceiver
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COPYRIGHT = \
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"Copyright (C) 2016-2018 by Vadim Yanitskiy <axilirator@gmail.com>\n" \
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"Copyright (C) 2017-2018 by Piotr Krysik <ptrkrysik@gmail.com>\n" \
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"License GPLv2+: GNU GPL version 2 or later " \
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"<http://gnu.org/licenses/gpl.html>\n" \
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"This is free software: you are free to change and redistribute it.\n" \
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"There is NO WARRANTY, to the extent permitted by law.\n"
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class Application:
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def __init__(self, argv):
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self.remote_addr = argv.remote_addr
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self.bind_addr = argv.bind_addr
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self.base_port = argv.base_port
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self.phy_args = argv.args
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self.phy_sample_rate = argv.sample_rate
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self.phy_rx_gain = argv.rx_gain
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self.phy_tx_gain = argv.tx_gain
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self.phy_rx_antenna = argv.rx_antenna
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self.phy_tx_antenna = argv.tx_antenna
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self.phy_freq_offset = argv.freq_offset
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self.phy_ppm = argv.ppm
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# Set up signal handlers
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signal.signal(signal.SIGINT, self.sig_handler)
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if argv.driver == "uhd":
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from grgsm.trx.radio_if_uhd import RadioInterfaceUHD as Radio
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elif argv.driver == "lms":
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from grgsm.trx.radio_if_lms import RadioInterfaceLMS as Radio
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else:
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raise ValueError("Unknown RadioInterface driver '%s'" % argv.driver)
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# Init Radio interface
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self.radio = Radio(self.phy_args, self.phy_sample_rate,
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self.phy_rx_gain, self.phy_tx_gain, self.phy_ppm,
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self.phy_rx_antenna, self.phy_tx_antenna,
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self.phy_freq_offset, self.bind_addr,
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self.remote_addr, self.base_port)
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# Init Transceiver
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self.trx = Transceiver(self.bind_addr,
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self.remote_addr, self.base_port,
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radio_if = self.radio)
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print("[i] Init complete")
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def run(self):
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# Enter main loop
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while True:
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self.trx.ctrl_if.loop()
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def shutdown(self):
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print("[i] Shutting down...")
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self.radio.shutdown()
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def sig_handler(self, signum, frame):
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print("Signal %d received" % signum)
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if signum is signal.SIGINT:
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self.shutdown()
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sys.exit(0)
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def eng_float(value):
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try:
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return eng_notation.str_to_num(value)
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except:
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raise ArgumentTypeError("invalid engineering notation "
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"value: {0}".format(value))
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def parse_argv():
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parser = ArgumentParser(prog = "grgsm_trx")
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# TRX interface specific
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trx_group = parser.add_argument_group("TRX interface")
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trx_group.add_argument("-i", "--remote-addr",
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dest = "remote_addr", type = str, default = "127.0.0.1",
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help = "Set remote address (default %(default)s)")
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trx_group.add_argument("-b", "--bind-addr",
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dest = "bind_addr", type = str, default = "0.0.0.0",
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help = "Set bind address (default %(default)s)")
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trx_group.add_argument("-p", "--base_port",
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dest = "base_port", type = int, default = 6700,
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help = "Set base port number (default %(default)s)")
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# PHY specific
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phy_group = parser.add_argument_group("PHY parameters")
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phy_group.add_argument("--driver",
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dest = "driver", type = str, default = "uhd",
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choices = ["uhd", "lms"],
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help = "Set device driver (default %(default)s)")
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phy_group.add_argument("-a", "--args",
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dest = "args", type = str, default = "",
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help = "Set device arguments")
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phy_group.add_argument("-s", "--sample-rate",
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dest = "sample_rate", type = eng_float,
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default = RadioInterface.SAMPLE_RATE,
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help = "Set samp_rate (default %(default)s)")
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phy_group.add_argument("-g", "--rx-gain",
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dest = "rx_gain", type = float, default = 30,
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help = "Set RX gain (default %(default)s)")
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phy_group.add_argument("-G", "--tx-gain",
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dest = "tx_gain", type = float, default = 10,
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help = "Set TX gain (default %(default)s)")
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phy_group.add_argument("--rx-antenna",
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dest = "rx_antenna", type = str, default = "RX2",
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help = "Set RX antenna (default %(default)s)")
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phy_group.add_argument("--tx-antenna",
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dest = "tx_antenna", type = str, default = "TX/RX",
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help = "Set TX antenna (default %(default)s)")
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phy_group.add_argument("--freq-offset",
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dest = "freq_offset", type = eng_float, default = 0,
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help = "Shift baseband freq. (e.g. -500M)")
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phy_group.add_argument("--ppm",
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dest = "ppm", type = float, default = 0,
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help = "Set frequency correction (default %(default)s)")
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return parser.parse_args()
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if __name__ == '__main__':
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print(COPYRIGHT)
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argv = parse_argv()
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app = Application(argv)
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app.run()
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